Keystone XL, a pipeline proposal to pump Canadian oil sands through the heart of America, has alarmed environmentalists and become one of the most contentious issues of the Obama presidency. But there is a “Plan B” to cut the United States out of the picture, and it is championed by one of Canada’s wealthiest business dynasties. Since 2012, the billionaire Irving family has been advocating a proposal called Energy East. The 2,858-mile (4,600-km) pipeline would link trillions of dollars worth of oil in land-locked fields in the western province of Alberta to an Atlantic port in the Irvings’ eastern home province of New Brunswick, north of Maine, creating a gateway to new foreign markets for Canadian oil. The C$12 billion ($10.8 billion) line, which would pump 1.1 million barrels per day, would include about 1,865 miles of existing natural gas pipeline converted to […]